21219242

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 36460800

約数和(自身を除く): 15241558

約数列:

[1, 2, 11, 22, 29, 58, 79, 158, 319, 421, 638, 842, 869, 1738, 2291, 4582, 4631, 9262, 12209, 24418, 25201, 33259, 50402, 66518, 134299, 268598, 365849, 731698, 964511, 1929022, 10609621, 21219242]

約数ペア:

[(1, 21219242), (2, 10609621), (11, 1929022), (22, 964511), (29, 731698), (58, 365849), (79, 268598), (158, 134299), (319, 66518), (421, 50402), (638, 33259), (842, 25201), (869, 24418), (1738, 12209), (2291, 9262), (4582, 4631)]